LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
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3/9/2003<br />
CONDENSAREA VAPORILOR<br />
Con<strong>de</strong>nsarea în interiorul ţevilor orizontale<br />
şi serpentinelor<br />
o Coeficientul individual <strong>de</strong> <strong>transfer</strong> termic se<br />
calculează cu relaţia:<br />
α = 1,<br />
36⋅<br />
A⋅<br />
q<br />
0,<br />
5<br />
⋅ L<br />
0,<br />
35<br />
⋅ d<br />
−0,<br />
25<br />
(208)<br />
<strong>–</strong> A = coeficient care înglobează constantele fizicochimice<br />
ale substanţei care con<strong>de</strong>nsează;<br />
<strong>–</strong> q - fluxul termic unitar [W/m2 ];<br />
<strong>–</strong>L <strong>–</strong>lungimea ţevii [m];<br />
<strong>–</strong> d <strong>–</strong> diametrul interior al ţevii [m].<br />
<strong>LUCIAN</strong> <strong>GAVRILĂ</strong> <strong>–</strong> <strong>Fenomene</strong> <strong>de</strong> <strong>transfer</strong> <strong>II</strong> 50
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